CVE-2026-34248 Zammad has an information disclosure in ticket detail view of customers in shared organizations

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, customers in shared organizations means they can see each other's tickets could see fields which are not intended for customers - including fields not intended for them at all e.g. priority, custom ticket attribut...

EUVD-2026-20556

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, customers in shared organizations means they can see each other's tickets could see fields which are not intended for customers - including fields not intended for them at all e.g. priority, custom ticket attribut...

CVE-2026-34248

Zammad (web-based helpdesk) prior to 7.0.1 allowed customers in a shared organization to view fields not intended for customers (e.g., priority, internal ticket attributes) in the ticket detail view when opening a ticket from another user in the same shared org. The root cause is exposure of inte...

CVE-2026-34248 Zammad has an information disclosure in ticket detail view of customers in shared organizations

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, customers in shared organizations means they can see each other's tickets could see fields which are not intended for customers - including fields not intended for them at all e.g. priority, custom ticket attribut...

CVE-2026-34248 Zammad has an information disclosure in ticket detail view of customers in shared organizations

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, customers in shared organizations means they can see each other's tickets could see fields which are not intended for customers - including fields not intended for them at all e.g. priority, custom ticket attribut...

Zammad security vulnerabilities

Zammad is a ticketing management software developed by the German company Zammad. Versions of Zammad prior to 7.0.1 and 6.5.4 contained security vulnerabilities. These vulnerabilities stemmed from REST endpoints not checking user permissions, which could allow unauthorized use of text tools...

PT-2026-31418

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 7.0.1 and prior to 6.5.4 Description The OAuth callback endpoints for Microsoft, Google, and Facebook external credentials do not validate a CSRF state parameter. This could allow an attacker to potentially compromise...

Zammad cross-site request forgeing vulnerability

Zammad is a ticketing management software developed by the German company Zammad. Versions of Zammad prior to 7.0.1 and 6.5.4 contained a cross-site request forgeing vulnerability. This vulnerability stemmed from the lack of validation of the CSRF status parameter in the OAuth callback endpoint,...

CVE-2026-34248: Improper Access Control

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, customers in shared organizations means they can see each other's tickets could see fields which are not intended for customers - including fields not intended for them at all e.g. priority, custom ticket attribut...

Zammad access control vulnerability

Zammad is a ticketing management software developed by the German company Zammad. Versions of Zammad prior to 7.0.1 contained an access control vulnerability. This vulnerability stemmed from improper access control practices, which could allow customers within a shared organization to see fields...

PT-2026-31413

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 7.0.1 Description Zammad is a web based open source helpdesk/customer support system. In shared organizations, customers could view fields not intended for customer access, including fields restricted to internal use...

CVE-2026-34718: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the HTML sanitizer for ticket articles was missing proper sanitization of data: ... URI schemes, resulting in storing such malicious content in the database of the Zammad instance. The Zammad GUI is...

Zammad security vulnerabilities

Zammad is a ticketing management software developed by the German company Zammad. Versions of Zammad prior to 7.0.1 and 6.5.4 contained security vulnerabilities. These vulnerabilities were due to improper cleaning of data: URI schemes by the HTML cleaner, which could allow the storage of maliciou...

PT-2026-31415

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 7.0.1 and prior to 6.5.4 Description Zammad, a web-based open-source helpdesk system, had an issue in its HTML sanitizer for ticket articles. The sanitizer lacked proper sanitization of URI schemes, allowing malicious...

CVE-2026-34837: Missing Authorization

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, he REST endpoint POST /api/v1/aiassistance/texttools/:id contains an authorization failure. Context data e.g., a group or organization supplied to be used in the AI prompt were not checked if they are accessible f...

PT-2026-31424

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 7.0.1 Description Zammad, a web-based open-source helpdesk system, has an authorization failure in the REST endpoint POST /api/v1/ai assistance/text tools/:id. Context data provided for use in the AI prompt was not...

Zammad security vulnerabilities

Zammad is a ticketing management software developed by the German company Zammad. Versions of Zammad prior to 7.0.1 contained security vulnerabilities. These vulnerabilities stemmed from failed authorization at REST endpoints, which could allow unauthorized data to appear in AI notifications...

CVE-2026-34782: Missing Authorization

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the REST endpoint POST /api/v1/aiassistance/texttools/:id was not checking if a user is privileged to use the text tool, resulting in being able to use it in all situations. This vulnerability is fixed i...

CVE-2026-34720: Origin Validation Error

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the SSO mechanism in Zammad was not verifying the header originates from a trusted SSO proxy/gateway before applying further actions on it. This vulnerability is fixed in 7.0.1 and 6.5.4...

Zammad security vulnerabilities

Zammad is a ticketing management software developed by the German company Zammad. Versions of Zammad prior to 7.0.1 and 6.5.4 contained security vulnerabilities. These vulnerabilities stemmed from the lack of authorization checks at the ticket creation endpoint, which could lead to security risks...